/* ══════════════════════════════════════════════════════════════════════════
   ZAFIRA ONLINE STUDIO - 2026 ELITE OBSIDIAN UI
   Sapfir aksentlar: #0ea5e9, Chuqur Obsidian: #050608, Glassmorphism
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --bg-deep: #050608;
  --bg-card: rgba(10, 15, 26, 0.75);
  --bg-card-hover: rgba(15, 23, 42, 0.85);
  --bg-elevated: #0f172a;
  --bg-input: #070b12;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(14, 165, 233, 0.55);
  --border-glow: rgba(14, 165, 233, 0.25);
  
  --primary: #0ea5e9;
  --primary-light: #38bdf8;
  --primary-dark: #0284c7;
  --primary-gradient: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 50%, #3b82f6 100%);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --warning: #f59e0b;
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

/* Glow gradient mesh */
.glow-mesh {
  position: fixed;
  top: -20%;
  left: 30%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, rgba(2, 132, 199, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* ─── APP CONTAINER ─── */
.app-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  padding: 12px 18px;
  gap: 12px;
}

/* ─── HEADER ─── */
.header {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

/* Border beam effect on top of header */
.header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--primary-light), transparent);
  opacity: 0.8;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gem-icon {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 0 10px rgba(14, 165, 233, 0.6));
  animation: pulse-gem 3s ease-in-out infinite;
}

@keyframes pulse-gem {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 10px rgba(14, 165, 233, 0.6)); }
  50% { transform: scale(1.06); filter: drop-shadow(0 0 18px rgba(56, 189, 248, 0.9)); }
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.version-pill {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 600;
  background: rgba(14, 165, 233, 0.12);
  color: var(--primary-light);
  border: 1px solid rgba(14, 165, 233, 0.3);
  padding: 3px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.template-selector-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 10px;
  transition: border-color 0.2s;
}

.template-selector-box:hover, .template-selector-box:focus-within {
  border-color: var(--border-focus);
}

.template-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
}

.template-select {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
}

.template-select option {
  background: var(--bg-elevated);
  color: var(--text-main);
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  color: var(--primary-light);
}

.btn-icon {
  width: 16px;
  height: 16px;
}

.server-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse-dot 2s infinite;
}

.status-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

/* ─── WORKSPACE (MAIN SPLIT) ─── */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex: 1;
  min-height: 0; /* flex scroll fix */
}

/* ─── PANEL (EDITOR & OUTPUT) ─── */
.panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  position: relative;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(10, 15, 26, 0.9);
  border-bottom: 1px solid var(--border-subtle);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.panel-title svg {
  width: 16px;
  height: 16px;
  color: var(--primary-light);
}

.panel-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s;
}

.tool-btn:hover {
  background: var(--bg-elevated);
  color: var(--text-main);
}

/* Tabs */
.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  background: rgba(14, 165, 233, 0.15);
  color: var(--primary-light);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

/* ─── CODE EDITOR AREA ─── */
.editor-wrapper {
  flex: 1;
  display: flex;
  position: relative;
  overflow: hidden;
  background: #04060a;
}

.line-numbers {
  width: 48px;
  padding: 14px 8px 14px 4px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
  color: #64748b;
  text-align: right;
  user-select: none;
  background: #030408;
  border-right: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.code-textarea {
  flex: 1;
  background: transparent;
  border: none;
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
  padding: 14px 16px;
  resize: none;
  outline: none;
  white-space: pre;
  tab-size: 4;
  overflow: auto;
  caret-color: var(--primary-light);
}

.code-textarea::selection {
  background: rgba(14, 165, 233, 0.3);
}

/* Editor Status Bar */
.editor-footer {
  padding: 6px 14px;
  background: rgba(10, 15, 26, 0.9);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.cursor-pos {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ─── OUTPUT CONTENT AREA ─── */
.tab-content {
  flex: 1;
  overflow: auto;
  display: none;
  flex-direction: column;
  background: #04060a;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
}

.tab-content.active {
  display: flex;
}

/* Console Terminal View */
.terminal-output {
  white-space: pre-wrap;
  word-break: break-word;
  color: #e2e8f0;
  flex: 1;
}

.terminal-placeholder {
  color: var(--text-dim);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 8px;
}

.output-banner {
  padding: 10px 14px;
  border-radius: 10px;
  margin-bottom: 12px;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.output-banner.success {
  background: var(--success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.output-banner.error {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
}

/* AST Tree View */
.ast-container {
  white-space: pre;
  color: #38bdf8;
  font-size: 0.84rem;
  line-height: 1.5;
  overflow: auto;
}

/* Tokens Table / Badges */
.tokens-container {
  overflow: auto;
}

.tokens-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.tokens-table th {
  padding: 8px 12px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-subtle);
  font-weight: 600;
  text-transform: uppercase;
}

.tokens-table td {
  padding: 7px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.token-badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.token-KEYWORD { background: rgba(236, 72, 153, 0.15); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.3); }
.token-IDENT { background: rgba(56, 189, 248, 0.12); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.token-NUMBER { background: rgba(52, 211, 153, 0.12); color: #34d399; border: 1px solid rgba(52, 211, 153, 0.3); }
.token-STRING { background: rgba(251, 191, 36, 0.12); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.3); }
.token-OPERATOR { background: rgba(168, 85, 247, 0.12); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.token-DELIMITER { background: rgba(148, 163, 184, 0.1); color: #94a3b8; }

/* Diagnostics Tab */
.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 12px 14px;
  border-radius: 10px;
}

.stat-card-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.stat-card-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-light);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-focus);
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }
  .header {
    flex-wrap: wrap;
    gap: 10px;
  }
  .header-controls {
    width: 100%;
    justify-content: space-between;
  }
}